Vulnerability in Denyhosts
CVE-2006-6301
DenyHosts 2.5 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a login name containing certain strings with an IP address, which is not properly handled by a regular expression.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.019 (78.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: +0.000
Affected products
- Denyhosts — versions 2.5
References
- bugs.gentoo.org/show_bug.cgi (Exploit)
- www.vupen.com/english/advisories/2006/4876 (vdb-entry)
- secunia.com/advisories/23236 (Vendor Advisory, third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/30761 (vdb-entry)
- www.securityfocus.com/bid/21468 (vdb-entry)
- secunia.com/advisories/23603 (Vendor Advisory, third-party-advisory)
- security.gentoo.org/glsa/glsa-200701-01.xml (vendor-advisory)